Tissot-Desir About the Watch: Collection: Classic Contemporary Water resistance: 5 Bar Case: Round, 28 mm Lugs: 4.95 mm Crystal: Domed Sapphire Crystal Movement: Swiss Quartz Dial Colour: White Mother-of-Pearl Indexes: Diamonds -12, 0.03 ctw Strap/Chain reference: T605050199 Strap Details: Stainless Steel with Butterfly Clasp and Push Buttons